11) Lengthy Voicemail Messages
If I reach your voicemail, don’t you think I already know you can’t take my call right now and want me to leave my name, number, and a brief message? Do you need to waste my time telling me that? The whole process of leaving a message to begin with is too long. The last thing I want when I finally reach your personal greeting is a lengthy description of what you want me to do. We’ve been using cell phones long enough to know the drill. Just as you want my message to be brief, so too do I want you to keep your personal greeting short.

Now, I’ve certainly broken a few of these rules. What are your pet peeves when it comes to cell phones?